[return:AttributeName]

[gauthier]

Is there a way to do like c#:

Code: Select all

[return:AttributeName]
public object MethodName(){
 return null;
}

[Charles]

No, I guess there isn't. What do you think the syntax should be? Here are the current test cases:

<workspace>/Tests/320-misc-two/800-attributes

Although the source will look better in your local editor with syntax highlighting.

[gauthier]

it could be

def methodName as dynamic
  has return(AttributeName(someValue="value")), Another(withAnotherValue="another one")
  return 1

or anyother idea that looks better?

also, I'm in need for attribute on method parameters:

Code: Select all

void MethodName([AttributeName]object argument){}

could be

def methodName(argument has AttributeName as Object)
  pass

[Charles]

Can you provide some actual attribute names you will be using for return and parameter attributes? I just want to see some concrete examples from your own use.

[gauthier]

JSONReturnBinder :
http://hammett.castleproject.org/?p=247

and DataBind :
http://www.castleproject.org/monorail/d ... l#databind

both from MonoRail MVC framework

[Charles]

Thanks. For parameters, I'm thinking:

use Castle.MonoRail.Framework

class ProductController inherits SmartDispatcherController

    def create(prod as Product has DataBind('product'))
        pass

which follows the same format as methods where "has Attribute" follows "as Type".

For return attributes I was thinking of just using the "return" keyword as a prefix:

class Foo

    def getStates(countryCode as String) as State[]
        has return JSONReturnBinder
        return stateRepository.fetchAllByCountry(Country(countryCode))

Thoughts? Feelings?

[gauthier]

Chuck,

the only inconsistence with the parameter attribute is that the "has AttributeName" occurs somewhat after the parameter name to which it is attached,

but you are right that this is consistent with class and method declarations (however mostly occuring on another line) so it may be the right solution.

as for the second sample, that feel quite good to me

what others think about that?

[Charles]

I have added the attributes for parameters in the Cobra repository. changeset:2102

Try it out and let me know if you have any problems.

I'll try to do the "return" attribute soon.

[gauthier]

Chuck, that's working all along for my purpose, thank you!

[Charles]

No problem. Now I've added support for the "return" target in changeset:2103. Try it out and let me know how it goes.